7-4
SERVICING INFORMATION
CARBURETOR
Complaint
Symptom and possible causes
Remedy
Starting difficulty.
1. Clogged fuel pipe.
Clean.
2. Air leaking from joint between starter body and
Tighten, adjust or replace
carburetor.
gasket.
3. Air leaking from carburetor joint.
Tighten or replace defective
parts.
4. Improperly working starter plunger.
Adjust.
Idling or low-speed
1. Clogged or loose pilot jet.
Clean or tighten.
trouble.
2. Air leaking from carburetor joint.
Tighten or replace defective
part.
3. Clogged pilot outlet port.
Clean.
4. Clogged bypass port.
Clean.
5. Starter plunger not fully closed.
Adjust.
Medium- or high-speed
1. Clogged main jet.
Clean.
trouble.
2. Clogged needle jet.
Clean.
3. Improperly working throttle valve.
Adjust.
4. Clogged fuel filter.
Clean or replace.
Overflow and fuel level
1. Worn or damaged needle valve.
Replace.
fluctuations.
2. Improperly working float.
Adjust or replace.
3. Foreign matter on the needle valve.
Clean or replace with
needle valve seat.
4. Incorrect float chamber fuel level.
Adjust float height.
CHASSIS
Complaint
Symptom and possible causes
Remedy
Handling is too heavy or
1. Improper front wheel alignment.
Adjust.
stiff.
2. Insufficiently lubricated.
Lubricate.
3. Low air pressure in front tires.
Adjust.
4. Tie rod ends tending to seize.
Replace.
5. Linkage connections tending to seize.
Repair or replace.
Steering wobbles.
1. Unequally inflated tires.
Regulate.
2. Loose front wheel hub nuts.
Tighten.
3. Damaged or worn front wheel hub bearings.
Replace.
4. Worn or loose tie rod ends.
Replace or tighten.
5. Defective or incorrect front tires.
Replace.
6. Damaged or worn suspension arms and related bushings.
Replace.
7. Loose chassis nuts and bolts.
Tighten.
Steering pulls to one side.
1. Unequally inflated tires.
Regulate.
2. Improper front wheel alignment.
Adjust.
3. Worn front wheel hub bearings.
Replace.
4. Distored frame.
Repair or replace.
5. Defective shock absorber.
Replace.
Shocks felt in the steering.
1. High tire pressure.
Regulate.
2. Worn steering linkage connections.
Replace.
3. Loose suspension system bolts.
Tighten.
Tires rapidly or unevenly
1. Worn or loose front wheel hub bearings.
Replace.
wear.
2. Improper front wheel alignment.
Adjust.
Steering too noisy.
1. Loose nuts and bolts.
Tighten.
2. Damaged or worn front wheel hub bearings.
Replace.
3. Insufficiently lubricated.
Lubricate.
Suspension too soft.
1. Weak spring.
Replace.
2. Shock absorber leaks oil.
Replace.